Last night marked a historic moment for space travel, as SpaceX's Falcon 9 first stage succeeded at a powered landing at Cape Canaveral in Florida.

To put the significance of this achievement into perspective, consider that over 75% of the cost of space travel is the launch vehicle, which is discarded after use. Being able to recover and cheaply recondition the first stage (unfortunately not possible with splashdowns) means a significant cost decrease for space travel. On top of that, the same landing technology can be adapted for Mars landings in the future.

This is an amazing breakthrough, which (once SpaceX have completed their tests on the returned first stage) could herald the beginning of a new era of space flight.

(Note: linked video starts at ~32:20, just before the landing)